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Privacy Policy for TabRest

Last updated: 2026-04-08

Data Collection

TabRest does NOT collect, store, or transmit any personal data to external servers.

Data Storage

All data is stored locally on your device using Chrome's storage API:

  • Extension settings (sync storage) - Syncs with your Chrome account if signed in
  • Tab activity timestamps (local storage only) - Used to track inactive tabs
  • Usage statistics (local storage only) - Tabs unloaded count and estimated memory saved
  • YouTube timestamps (local storage only) - Video playback positions, auto-deleted after 7 days

Error Reporting (v0.1.0+)

Overview

TabRest includes an optional anonymous error reporting feature powered by Sentry SaaS. This is disabled by default and helps us identify and fix bugs faster.

What Data is Sent

When enabled, error reports contain:

  • Error message and stack trace
  • Surface tag (where error occurred: service_worker, popup, options, content_form, content_youtube)
  • Timestamp of the error
  • Browser environment (Chrome version)

What Data is NOT Sent

  • URLs or page titles (all URLs redacted to [REDACTED])
  • Email addresses (redacted to [REDACTED])
  • IP addresses (actively removed server-side)
  • Personal browsing data
  • Whitelist/blacklist contents (only counts)
  • Form or tab data

Privacy Safeguards

  1. Client-side redaction: All error payloads are sanitized before sending. URLs, emails, and IP addresses are replaced with [REDACTED].
  2. Server-side IP anonymization: Sentry dashboard setting "Prevent Storing of IP Addresses" is enabled.
  3. Rate limiting: Maximum 100 error reports per user per day.
  4. Deduplication: Identical errors within 24 hours are automatically deduplicated.
  5. Sampling: Repeated errors are sampled at 10% to avoid overwhelming reports.
  6. Retention: Error reports are deleted after 30 days on Sentry.

How to Enable

  1. Click TabRest icon in toolbar
  2. Click Options button
  3. Scroll to Privacy & Diagnostics section
  4. Check "Enable anonymous error reporting"

How to Disable

Uncheck the toggle in Privacy & Diagnostics at any time.

Sentry's Privacy Policy

Sentry is GDPR-compliant and stores data in the US. For details, visit: https://sentry.io/privacy/

Permissions Explained

Permission Purpose
tabs Required to list, query, and discard tabs
storage Required to save your settings and statistics
alarms Required for timer-based auto-unload functionality
system.memory Required to monitor RAM usage for threshold triggers
contextMenus Required for right-click context menu options
tabGroups Required for tab group unload features
scripting Required to add visual indicator to discarded tabs
idle Required for idle-state-only auto-unload feature
sentry.io Required to send anonymous error reports (v0.1.0+, opt-in)

Third Parties

This extension does not communicate with any external servers or third parties. All functionality runs entirely within your browser.

Data Retention

  • Settings persist until you uninstall the extension or clear browser data
  • Statistics can be reset manually from the options page
  • No data is retained after extension removal

Updates

This privacy policy may be updated when new features are added. The "Last updated" date will reflect any changes.

Contact

For questions about this privacy policy, please open an issue on our GitHub repository.

Open Source

TabRest is open source. You can review the complete source code to verify our privacy practices.